The characteristics of wulfenite and latest development of wulfenite extractive metallurgy were reviewed.

介绍彩钼铅矿特点其浸出工艺研究现状。

Objective To investigate the alcohol extractive technique of hyperin from Hypericum(perforatum) Linn.

目探索贯叶金丝桃药材中金丝桃苷乙醇工艺。

Studies on extraction of extractive and measurements on bacteriostatic activity of extractives against fungi from Melia azedarach L.

对苦楝物物对真菌抑菌活性研究。

Using PMK programing controler simulates of the process control system and corrects parameter of controler in extractive tower.

利用PMK可编程调节器实现过程控制系统仿真,并对调节器参数整定。

Cape jasmine extractive: cape jasmine extractive is the active component which comes from the desiccative ripe fruit of the cape jasmine belonging to gamene family.

栀子物是从茜草科植物栀子干燥成熟果实中有效成分。

The main factors that influence the extractive distillation were researched such as the theoretical plate number, feedboard, solvent ratio, reflux ratio, the temperature of solvent.

通过计算考察理论板数、料位置、溶剂比、回流比、萃剂温度等主要影响因素改变对萃精馏过程影响,为工业应用供理论与实践基础。